<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>QiHai</title>
</head>
<body>
    <h3>欢迎来到我的第一个界面！</h3>
    <form name="input" action="/a/b/notexist.html" method="POST">
        Username: <input type="text" name="user"> <br/>
        Password: <input type="password" name="pwd"> <br/>
        <input type="submit" value="登陆">
    </form>
</body>
</html>